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arm64: dts: allwinner: H6: Add PMU mode

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[ Upstream commit 7aa9b9eb7d6a8fde7acbe0446444f7e3fae1fe3b ]

Add the Performance Monitoring Unit (PMU) device tree node to the H6
.dtsi, which tells DT users which interrupts are triggered by PMU
overflow events on each core. The numbers come from the manual and have
been checked in U-Boot and with perf in Linux.

Tested with perf record and taskset on a Pine H64.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Andre Przywara 2019-11-21 01:18:33 +00:00 • committed by Greg Kroah-Hartman
commit 02dfae36b0
1 changed files with 10 additions and 0 deletions
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10
arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
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@ -70,6 +70,16 @@
clock-output-names = "ext_osc32k";
};
pmu {
compatible = "arm,cortex-a53-pmu",
"arm,armv8-pmuv3";
interrupts = <GIC_SPI 140 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 141 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 142 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 143 IRQ_TYPE_LEVEL_HIGH>;
interrupt-affinity = <&cpu0>, <&cpu1>, <&cpu2>, <&cpu3>;
};
psci {
compatible = "arm,psci-0.2";
method = "smc";